In 2026, Sao Tome and Principe's digital advertising market is expected to reach approximately 4.2 million USD, reflecting growing internet access and mobile usage. Despite modest overall spends, the digital sector is rapidly expanding, with mobile ad revenue constituting a significant portion of the market. However, ad fraud remains a concern, with an estimated 8.5% of impressions being fraudulent, which could impact advertiser ROI.
The average CPC remains low at 0.15 USD, indicating competitive pricing but also highlighting the need for better fraud detection measures. About 35% of the population is exposed to digital ads, mainly on mobile devices, emphasizing the importance of targeted campaigns. As digital adoption accelerates, managing ad fraud will be critical for sustainable growth in Sao Tome and Principe's digital advertising landscape.